Complete Stage 1 in Campaign Mode.

Complete Stage 2 in Campaign Mode.

Complete Stage 3 in Campaign Mode.

Complete Stage 4 in Campaign Mode.

Complete Stage 5 in Campaign Mode.

Purchase 1 Upgrade.

Purchase 2 Upgrades.

Purchase 3 Upgrades.

Purchase 4 Upgrades.

Purchase 5 Upgrades.

Purchase 10 Upgrades.